Seiko Cal. 6636 - 538

Seiko 6636-538

The 6636-538 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6636 caliber with 19j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-4dd3eecf6a70]

Also known as: Emperor

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
13.5mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Navy
Jewels
19j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1974

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